ULD1H330MED

The ULD1H330MED is a miniature aluminum electrolytic capacitor designed for long-life power applications. It is a radial-lead, polarized capacitor offering 33 µF nominal capacitance at a 50 V rating and a compact can-style package.

Targeted for general-purpose power filtering and specifically suited for power supplies for LED lighting, the part combines a small footprint with endurance up to 10,000 hours at +105°C and RoHS compliance.

Key Features

• Long-Life Endurance: Rated for 10,000 hours at +105°C, providing extended operational life under elevated-temperature operating conditions.
• Compact Radial Can Package: Small footprint with dimensions L: 1.1 × D: 0.63 cm and radial lead spacing of 2.5 mm to fit space-constrained designs.
• Electrical Ratings: 33 µF nominal capacitance at a 50 V rated voltage with capacitance tolerance of ±20% (measured at 120 Hz, 20°C).
• Operating Temperature Range: Specified for −40°C to +105°C to cover a wide range of industrial and commercial environments.
• Ripple Current Performance: Rated ripple current of 104.5 mA at 120 Hz and 190 mA at 100 kHz for effective smoothing in power-supply applications.
• Polarized Radial Lead: Polarized construction with radial lead mounting for straightforward through-hole assembly and secure board attachment.
• RoHS Compliant: Conforms to RoHS directive (2011/65/EU, (EU)2015/863), meeting environmental requirements for restricted substances.

Typical Applications

• LED Lighting Power Supplies: Used for smoothing and bulk decoupling in LED driver circuits where long-life performance at elevated temperatures is required.
• General-Purpose Power Filtering: Suitable for a variety of DC power supply input/output filtering and decoupling roles in commercial and industrial equipment.
• Compact PCB Designs: Small can dimensions and 2.5 mm lead spacing make it appropriate for compact power modules and tight-layout assemblies.

Unique Advantages

• Extended High-Temperature Life: 10,000-hour-rated endurance at +105°C helps reduce maintenance and replacement frequency in high-temperature applications.
• Space-Efficient Form Factor: Miniature L: 1.1 × D: 0.63 cm package enables designers to maintain capacitance without sacrificing board real estate.
• Defined Ripple Handling: Specified ripple current values at both low and high frequencies allow predictable thermal and electrical performance in power-supply designs.
• Clear Electrical Specifications: Explicit capacitance, tolerance, voltage rating, and leakage/tan δ limits facilitate reliable selection and analysis during design validation.
• Compliance-Ready: RoHS conformity supports regulatory requirements for commercial and industrial products.

Why Choose ULD1H330MED?

The ULD1H330MED combines a compact radial-can package with long-life endurance and defined ripple-current capability, making it well suited for designers building LED power supplies and general-purpose power-filtering circuits that operate at elevated temperatures. Its clear electrical and mechanical specifications simplify selection and integration into space-limited layouts.

Manufactured by Nichicon, this capacitor is targeted at engineers seeking a reliable, RoHS-compliant polarized electrolytic solution when extended high-temperature life and compact size are required.

If you need pricing, lead time, or a formal quote for ULD1H330MED, request a quote or contact sales to discuss availability and ordering details.